core/homeassistant/components/alarmdecoder/sensor.py

39 lines
1.2 KiB
Python

"""Support for AlarmDecoder sensors (Shows Panel Display)."""
from homeassistant.components.sensor import SensorEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import SIGNAL_PANEL_MESSAGE
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up for AlarmDecoder sensor."""
entity = AlarmDecoderSensor()
async_add_entities([entity])
class AlarmDecoderSensor(SensorEntity):
"""Representation of an AlarmDecoder keypad."""
_attr_icon = "mdi:alarm-check"
_attr_name = "Alarm Panel Display"
_attr_should_poll = False
async def async_added_to_hass(self) -> None:
"""Register callbacks."""
self.async_on_remove(
async_dispatcher_connect(
self.hass, SIGNAL_PANEL_MESSAGE, self._message_callback
)
)
def _message_callback(self, message):
if self._attr_native_value != message.text:
self._attr_native_value = message.text
self.schedule_update_ha_state()